US Patent 7089612 Motorized operating table with multiple sections

An operating table including at least three elements which are moveable in relation to each other; at least two actuators, each controlling displacement of two elements in relation to the other; a controller which drives each actuator; a sensor to detect a risk of collision of one of the elements with an obstacle when executing a displacement request of a first actuator; a controller which determines a corrective command order of a second actuator different from the first actuator upon detecting a risk of collision, wherein execution of the corrective command order by the second actuator causes cessation of the detected risk of collision upon subsequent execution of the displacement request of the first actuator; and a display to view the corrective command order.